Abstract
THE remarkable dimorphism of the monogenetic trematode Polystoma integerrimum has been the subject of a number of investigations, principally by Zeller1,2 and Gallien3. The descriptions of the neotenic (branchial) form given by these authors show several important discrepancies, and in view of this a re-examination of the species was undertaken.
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References
Zeller, E., Z. Wiss. Zool., 22, 1 (1872).
Zeller, E., Z. Wiss. Zool., 27, 238 (1876).
Gallien, L., Trav. Sta. Zool. Wimereux, 12, 1 (1934).
Steedman, H. F., Quart. J. Micro. Sci., 91 (4), 447 (1950).
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WILLIAMS, J. Anatomy of Polystoma integerrimum. Nature 180, 866 (1957). https://doi.org/10.1038/180866a0
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DOI: https://doi.org/10.1038/180866a0
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